alleryಒಂದು ಪ್ರಯಾಣದ ಮೂರು ಸಮಾನ ಕಾಲುಗಳನ್ನು 20, 30 ಮತ್ತು 60 ಕಿಮೀ/ಗಂ ವೇಗದಲ್ಲಿ ಓಡಿಸಲಾಗುತ್ತದೆ. ಪೂರ್ಣ ಪ್ರಯಾಣದ ಸರಾಸರಿ ವೇಗ ಎಷ್ಟು?
A40 km/h
B35 km/h
C30 km/h
D25 km/h
Answer & Solution
Correct answer: C. 30 km/h
ಹಾರ್ಮೋನಿಕ್ ಸರಾಸರಿ: 3 / (1/20 + 1/30 + 1/60) = 3 / (1/10) = 30 ಕಿಮೀ/ಗಂ.
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